<template>
  <footer class="footer">
    <span class="todo-count">剩余<strong>{{farr.length}}</strong></span>
    <ul class="filters" @click="fn">
      <li>
        <a :class="{selected: isSel=== 'all'}" href="javascript:;" @click="isSel='all'">全部</a>
      </li>
      <li>
        <a :class="{selected:isSel==='no'}" href="javascript:;"  @click="isSel='no'">未完成</a>
      </li>
      <li>
        <a :class="{selected:isSel==='yes'}" href="javascript:;"  @click="isSel='yes'">已完成</a>
      </li>
    </ul>
    <button class="clear-completed" @click="clearfn" >清除已完成</button>
  </footer>
</template>

<script>
export default {
    props:['farr'],
    data(){
      return{
        isSel:'all'   
      }
    },
    methods:{
      fn(){
        this.$emit('changetype',this.isSel)
      },
      clearfn(){
        this.$emit('clear')
      }
    }
}
</script>